<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登陆表单区域 -->
      <el-form
        class="login_form"
        :model="loginForm"
        :rules="loginFormRules"
        ref="loginFormRef"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            prefix-icon="iconfont icon-username"
            v-model="loginForm.username"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            prefix-icon="iconfont icon-password"
            v-model="loginForm.password"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登陆</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登陆名称', trigger: 'blur' },
          { min: 3, max: 15, message: '长度在 3 到 15 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登陆密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登陆失败')
        this.$message.success('登陆成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push({
          path: '/home'
        })
      })
    }
  }
}
</script>

<style lang="stylus" scoped>
.login
  &_container
    width: 100%
    height: 100%
    background-color: #2b4b6b
  &_box
    width: 450px
    height: 300px
    background-color: #fff
    border-radius: 3px
    position: absolute
    left: 50%
    top: 50%
    transform: translate(-50%, -50%)
    .avatar_box
      width: 130px
      height: 130px
      border: 1px solid #eee
      border-radius: 50%
      padding: 10px
      box-shadow: 0 0 10px #ddd
      position: absolute
      left: 50%
      transform: translate(-50%, -50%)
      background-color: #fff
      img
        width: 100%
        height: 100%
        border-radius: 50%
        background-color: #eee
  &_form
    position: absolute
    bottom: 0
    width: 100%
    padding: 0 20px
    box-sizing: border-box
.btns
  display: flex
  justify-content: flex-end
</style>
